Bicycle stem lock

ABSTRACT

A bicycle fork stem lock installed either at the time of manufacture of a bicycle or subsequently, the lock including a slide bolt projecting from the fork stem into the upper bearing cup and preferably also into the head frame, the bicycle fork stem and upper head bearing cup being of standard size.

United States Patent 1191 Klein, Jr.

[451 Jan. 15, 1974 BICYCLE STEM LOCK [76] Inventor: Frank F. Klein, Jr.,2049 W. 63rd St., Chicago, 111. 60636 [22] Filed: Apr. 26, 1971 21 Appl.No.: 137,692

Related US. Application Data [60] Division of Ser. No. 771,080, Oct. 28,1968, Pat. No. 3,660,995, which is a continuation-in-part of Ser. No.618,004, Feb. 23, 1967, abandoned.

[52] US. Cl 280/279, 280/289, 280/281, D90/8, D90/9, D90/11 [51] Int. ClB62k 19/32 [58] Field of Search 280/279, 280, 289, 280/276; 70/233, 187;D90/8, 9, 11

[56] References Cited UNITED STATES PATENTS 2,358,035 9/1944 Schwinn280/279 3,306,684 2/1967 Klein, Jr. 280/279 X 1,883,033 10/1932 Snell280/279 FOREIGN PATENTS OR APPLICATIONS 711,578 8/1938 Germany 70/187808,739 2/1937 France 230/279 646,745 6/1935 Germany 280/279 571,10512/1931 Germany 280/279 Primary Examiner-Kenneth H. Betts AssistantExaminer-John P. Silverstrim Attorney-Olson, Trexler, Wolters & Bushnell[5 7] ABSTRACT A bicycle fork stem lock installed either at the time ofmanufacture of a bicycle or subsequently, the lock including a slidebolt projecting from the fork stem into the upper bearing cup andpreferably also into the head frame, the bicycle fork stem and upperhead bearing cup being of standard size.

5 Claims, 18 Drawing Figures BICYCLE STEM LOCK This is a division ofapplication Ser. No. 771,080, filed Oct. 28, I968, now U.S. Pat. No.3,660,995, the

latter being a continuation-in-part of my application Ser. No. 618,004,filed Feb. 23, 1967, now abandoned.

This invention relates to the bicycle art, and more particularly to anoptionally includable steering lock for bicycles and the like.

In my prior U. S. Pat. No. 3,136,149, issued June 9, 1964, for BicycleLock, I have disclosed and claimed a simple and highly effective forkstem lock for a bicycle or the like. The structure in my aforesaidpatent is inexpensive, and can be installed during manufacture of thebicycle, or at a later time. It requires a slight modification of thestandard bicycle fork stem, namely a fork stem that is somewhat higherthan the usual practice. In many respects this is quite desirable, sinceit is something different, and hence something well desired by somepeople. On the other hand, it precludes fitting of the bicycle into astandard bicycle shipping carton, and this is sometimes undesirable.

Accordingly, it is an object of the present invention to provide a newand improved bicycle fork stem lock which is optionally includable, andwhich operates in conjunction with a bicycle fork stem of standardheight.

It is further an object of the present invention to provide a bicyclefork stem lock wherein a slide bolt locks the stem to the upper bearingcup, and wherein the upper bearing cup is positively locked againstrotation relative to the head frame.

A further object of this invention is to provide a bicycle fork stemlock in which the locked form stem canot be withdrawn downwardly fromthe head frame in case of theft.

Yet another object of the present invention is to provide a bicycle forkstem lock wherein slots, holes, etc. in the head frame are covered by anornamental band or European style head lug fittings.

Other and further objects and avantages of the present invention will beapparent from the following description when taken in connection withthe accompanying drawings, wherein:

FIG. I shows the upper forward portion of a typical tubular framebicycle incorporating the features of the present invention;

FIG. 2 is a vertical longitudinal view, partially in section, throughthe structure of FIG. 1;

FIG. 3 is a longitudinal further section similar to FIG. 2 on anenlarged scale;

FIG. 4 is a generally horizontal view partially in cross section. takensubstantially on the line 4-4 of FIG. 2;

FIG. 8 is a substantially horizontal cross sectional 6 view taken alongthe line 8-8 of FIG. 3;

FIG. 9 is a perspective view showing the upper and lower bearing cups;

FIG. 9A is a perspective view of a modified upper bearing cup;

FIG. 10 is a generally horizontal cross sectional view takensubstantially along the line l0-10 of FIG. 2;

FIG. 11 is a layout view of the ornamental band or head Iug fittingbefore application to the head frame;

FIG. 12 is a top view of the completed head lug fitting on a reducedscale;

FIG. 13 is a layout view similar to FIG. 11 on a re- 10 duced scaleshowing a modified band;

FIG. 14 is a perspective view of the crank hanger portion of a bicycle,showing the ornamental bands of the present invention applied thereto;

FIG. 15 is a fragmentary view partly in section, taken 15 substantiallyalong the line l515 in FIG. 14;

FIG. 16 is an axial sectional view through the crank hanger, as takensubstantially along the line l6--I6 in FIG. 14; and

FIG. 17 is an exploded perspective view showing an 20 ornamental bandfor the crank hanger, and a retaining ring therefor.

The present application comprises a cont inuation in part of mycopending application Ser. No. 618,004,

filed Feb. 23, 1967, for Bicycle Stem Lock.

forward or tubular head portion or head frame 22. The

fork stem 24 is of generally conventional construction, differing onlyslightly therefrom as will be pointed out hereinafter, is secured to thefork sides 26 in the usual manner, and is journaled within the tubularhead portion as hereinafter will be set forth. A handle bar 28 issecured slightly above and forwardly of the top end of the fork stern bymeans of a bracket 30, and this may be of any conventional type, or itmay be the bracket shown in my prior U.S. Pat. No. 3,1 36,l49,heretofore mentioned. A hearing cone 32 is provided at the bottom of thefork stem and at the top of the fork, in accordance with the usualpractice. The bearing cone 32 is seen also in FIG. 6. Within andextending from the bottom of the tubular head frame 22 is a bearing cup34 of generally conventional construction, and in accordance with theusual practice, the bearing balls 36 are disposed between this cup andthe cone 32, and may be positioned by a bearing retainer. The upper,tubular portion 38 of the bearing cup (see also FIG. 9)

forms a press fit in the bottom end of the tubular head frame 22. Inaddition, diametrically opposed pins 40 are received in complementaryapertures 42 in the head frame and in the cylindrical portion 38 of thecup. As will be apparent, the fork stem 24 forms a fairly close fitwithin the cylindrical portion 38, this fit being closer than the metalthickness of the head frame 22. Consequently, the pins 40 cannot bedriven into the interior of the head frame to release the cup fordownward withdrawal until after the fork stem has been withdrawn.

Similarly, at the upper end of the tubular head frame, there is anupwardly facing bearing cup 44 having a tubular portion 46 forming apress fit within the upper end of the head frame. The bearing cup is ofconventional overall height. and differs somewhat from the conventionalas will be pointed out shortly hereinafter. A plurality of ball bearings48 is received in the cup.

and may be provided with a bearing retainer in accordance withconventional practice. A bearing cone or nut 50 is internally threaded,and is threaded onto a roller external thread section 52 (see also FIG.6) near the upper end of the fork stem 24. The cone 50 is provided atits upper portion with a radially extending flange 54, and in accordancewith the invention as disclosed and claimed in my copending applicationSer. No. 380,383, filed July 6, 1964, for Bearing Construction forBicycles and the Like (allowed Oct. 10, 1966), and particularly FIGS. 9,10, and 11 thereof, the flange 54 is provided with a polygonal exterior56. Axially directed apertures 58 pass through the flange 54 tofacilitate oiling of the bearing balls 48. A washer 60 of complementaryshape, and having a limited number of access holes 62 therein capable ofalignment with the apertures 58, immediately overlies the flange S4 ofthe bearing cone 50. A depending polygonal flange 64 encircles thepolygonal periphery 56 of the bearing cone to lock the cone to thewasher against rotation. A radially inwardly extending tongue 66 on thewasher 60 is received in a vertical slot 68 through the threads 52 onthe fork stem, whereby to lock the washer rotationally to the fork stem.Thus, when the washer has been lowered in place in encirclingrelationship with the bearing cone 50, the bearing cone cannotrotationally loosen on the threads 52 to lead to a sloppy bearing fit. Anut 70 is turned down on top of the washer to hold it against the top ofthe bearing cone 50. This is all explained in considerable detail in myaforesaid copending application Ser. No. 380,383. It will be noted thatthe particular nut and washer construction is of low over-all heightwhich reduces the standard length of the fork stem proper.

As has been observed previously, the upper bearing cup 44 is of standardheight and generally conventional construction. However, as will be seenin FIG. 2, and particularly in FIG. 9, the depending flange 46 isprovided with one or more notches 72 for receipt of a locking bolthereinafter to be disclosed. The notches 72 open edgewise downwardly ofthe cylindrical portion 46. In order to lock the bearing cup 44rotationally to the head frame, the bearing cup is provided withdiametrically spaced radially outwardly struck cars 74, and these earsare received in complementary edgewise upwardly opening recess meanscomprising notches 76 at the top of the head frame. This rotationallocking is in addition to the usual press fit. Alternatively, notchescan be provided in the cup which interfit with inwardly struck ears atthe top of the head frame. Thus, in FIG. 9A the bearing cup 44 is shownwith slots 74a for receipt of cars on the head frame. As a furtheralternative or supplement, the cup 44 in FIG. 9A is shown with recessmeans comprising depressions or dimples 74b for receipt of complementaryinward protuberances on the head frame.

The fork stem 24 is open at the top as indicated at 78, and if thebicycle is shipped with no lock, a plug, such as of plastic, is insertedin the open top. The lock mechanism as hereinafter set forth may beincorporated during manufacture instead of this plug, or the plug maysubsequently be removed and the lock mechanism installed. The lockmechanism is readily seen in FIGS. 2, 3, 7, and 8, and includes acylinder, tube, or sleeve 80. The sleeve 80 need not be particularlystrong, and can be formed of thin gauge metal or of plastic. A lockcylinder 82 of conventional construction is tightly received in theupper end of the sleeve 80, and preferably has associated therewith awasherlike structure or flange 84 for overlying the top end of thesleeve and also the parting line between the sleeve 80 and the fork stem24. The lock cylinder 82 is of any suitable known construction, and isturnable by means of a key 85.

At the opposite end of the sleeve there is received, as by a force fit,a locking bolt plug 86. This may be of any suitable material, and Icontemplate that plastic material might be preferred as a cost savingfeature. The plug 86 is cylindrical, and has an axial bore 88 oepning atthe top for receipt of a lock shaft 90 depending from and turning withthe cylinder 82. A lock bolt or pin 92 is diametrically reciprocable ina complementary bore 94 in the lock plug, and is biased by a spring 96toward outward or locking position. An eccentric pin 98 on the bottom ofthe lock shaft 90 is received in a notch on the side of the locking bolt92 for reciprocating the lock bolt upon turning of the cylinder 82 anddepending lock shaft 90. A similar mechanism is shown and described ingreat detail in my previously mentioned US. Pat. No. 3,136,149.

The sleeve 80 is provided with a lateral aperture 100 through which thelocking bolt 92 may project. Similarly, the fork stem 24 is providedwith a lateral aperture 104 through which the locking bolt may project.To insure proper alignment of the locking bolt with the aperture 104, adiametral cross pin 106 is provided at the proper elevation in the forkstem 24. The bottom edge of the sleeve 80 is provided with diametricallyopposed notches 107 for receipt of the pin, and the bottom end of thelock plug 86 is provided with a complementary semi-cylindrical diametralgroove 108 for receipt of the pin. Alternatively to the pin, the formstem 24 could have inwardly struck ears to be received in notches in agroove in the sleeve 80 and plug 86.

The locking bolt 92 is capable of alignment with one of the notches 72in the upper bearing cup 44. Upon proper turning of the fork stern andextension of the locking bolt by turning of the key 86, the locking boltwill enter one of the notches 72, thus preventing the bicycle from beingsteered, and hence from being ridden. Preferably, for greatest lockingstrength, apertures 110 are provided in the head frame 22 in alignmentwith the notches 72. Thus, the bolt 92 preferably can extend into thehead frame as well as into the upper bearing cup, providing a strongerand more positive lock.

For illustrative purposes, the notches 72 and apertures 110 have beenshown as being at right angles to the fore and aft direction of thebicycle. This means that the handle bar and front wheel must be turned90 from either direction of straight ahead for locking. However, this isnot essential, as other angles could be used, or the wheel could belocked in a straight ahead position.

I provide an upper ornamental band or collar 112 which encircles thenotches 76 which receive the ears 74, and which also covers theapertures 110. This prevents thieves and the like from attemptingmanually to depress the latch bolt, and also provides a more pleasingappearance while avoiding the opportunity for corrosion, mischief, etc.A generally similar lower band or collar 114 is provided at the bottomof the head frame 22 which is generally similar to the band 112.However, one significant difference is that the band 112 preferably isprovided at its upper edge with inwardly directed ears 113 which extendthrough their notches 76 and overlie the ears 74. The bands or collarsmay be of plastic or metal, and can be of different shapes or designs,such as is common in European headlug fittings. However, it should benoted that they are not tubular fittings for joining the variousportions of the bicycle frame together. Generally speaking, the bands orcollars are tapered or thinner in an axial direction at the backportions than at the front, and also are flared at the back portions tofit over the fillets where the head frame is joined to the rearwardlyextending frame members of the bicycle. This interfitting, coupled withthe holding down of the bands or collars by the respective bearing cupscenters and holds the bands or collars in position. In addition, pins 40are passed through the bands or collars, and through the tubular headframe and bearing cups, to prevent unauthorized disassembly of theparts. One satisfactory ornamental band 112 is shown in layout fashionin FIG. 11, notches or concavities 116 being provided for cooperatingwith the tubular frame member when the flat or layout blank of FIG. 12is rolled into a ring or band and buttwelded or otherwise secured. Thecompleted band is seen in reduced scale in FIG. 12 (with the exceptionthat the inwardly directed ears 113 are omitted from FIGS. 12 and 13),and the material is flared out at 115 for fitting over the fillets 117(FIG. 2) where the head frame is welded to the rearwardly extendingframe members. The upper bearing cup holds the ring or collar 112 downso that the flare 155 and notch 116 tightly engage the fillet 117,whereby the collar or band cannot rotate on the head frame.

In FIG. 13 there is shown, on a reduced scale, a lower band or collar114 of plain design, and, with the notches 116 on the upper corners, aflare again is formed, and the flare and notches prevent rotation, thering being held up by the lower bearing cup. While reference has beenmade in connection with both the upper and lower bands of notches andflares in combination, it will be understood that either a notch or aflare alone of proper size and configuration would be capable ofpreventing rotation. Also, other ornamental designs can be used, and thelower band need not be plain.

Although not specifically shown herein, since it is a known feature forexample, in my prior US. Pat. No. 3,136,149 the locking cylinder 82, inaddition to fitting by a press fit, may be pinned in place in the upperend of the fork stem. Such pin would, of course, be covered by thehandle bar bracket 30. Since the interior of the fork stem 24 is ofuniform diameter, the lock unit, including the sleeve 80, the plug 86,and the cylinder 82 may be entirely omitted during manufacture of thebicycle, and easily slipped into place at a later date. In this new lockdesign the locking bolt will extend into the fork stem proper 24 whenthe bicycle is in the unlocked position and is compressed therein whenthe fork unit is removed for service.

It will be appreciated that should someone steal a bicycle locked withthe present lock, and attempt to disassemble the structure by removingthe handle bar bracket and the retaining nut 70 along with the upperbearing cone, he would be doomed to failure. The projecting locking boltwould prevent the fork stem from being pulled through the lower bearingcup, and the lower bearing cup cannot be removed under thecircumstances, since the pins 40 cannot be driven inwardly until afterthe fork stem has been completely removed.

It will be seen that the objects of the invention have been attained.The lock is optionally includable during manufacture of the bicycle, ormay be inserted at a later date. The fork stem is of generallyconventional construction, and is of conventional height, whereby abicycle incorporating the present invention can be shipped in a shippingcarton of standard size. Furthermore, the upper bearing cup is ofstandard size, and has modifications that readily can be made in a sheetmetal working machine. Furthermore, the superior upper bearing conelocking and oiling structure of my US. Pat. No. 3,306,684, which issuedFeb. 28, 1967, is included.

In the event that the entire locking unit should need to be removed forservicing, upon removal of the upper structure from the fork stem,particularly including the nut and bearing cone 50, a small punch can beangled up through the slot 68 and rapped with a hammer to raise thesleeve 80. To facilitate this end, the sleeve preferably is formed withsmall grooves 118 (FIG. 7, conveniently rolled or stamped in place.

In one practical embodiment of the invention, the fork stem tubing has a0.965 inch outside diameter, and a 0.750 inch inside diameter. A threadrolling die is readily passed over the end of the fork stem tubing tothe point necessary for rolling the threads 52 thereon, the threads inthis specific example having an axial length of 4: inch. It is thenunnecessary to perform any other machine work on the end of the forkstem tubing, thus materially reducing the cost of the structure. Uponrolling of the threads, the crests thereof come to a one-inch outsidediameter. Thus, the bearing cone 50 and nut 70, along with the headwasher 60, can be slipped over the end of the tubing and down to thethreaded portion thereof without difficulty.

When there is to be an authorized removal of the fork stern andassociated parts from the head frame, the handle bar bracket 30, the nut70, the washer 60, and the bearing cone 50 are removed. The upperbearing cup 44 is also removed, and the locking bolt is pressed backinto unlocked position (bearing in mind that it is spring pressedoutwardly and held in place with a tool comprising a small length oftubing with a one inch inside diameter, and a l-l/ 16 inch outsidediameter slipped over the fork stem to hold the locking bolt inretracted or depressed position. This tube sleeve tool is then removedwith the lock and fork stem for service.

Ornamental bands in accordance with the present invention are applicablealso to the crank hanger of a bicycle, as well as to the tubular headframe. Such use of ornamental bands is shown in FIGS. 14-17, to whichreference should now be had. A cylindrical crank hanger 118 is shown inFIGS. 1416, and has secured thereto the usual frame members, includingthe member 120 extending forwardly and upwardly to the tubular headframe, the upright member 122 extending up to the vicinity of thesaddle, and the two spaced rearwardly extending members 124 suspendingthe rear wheel. A crank assembly is generally associated with the crankhanger, but the details thereof are .not of particular importance to thepresent invention, and therefore associated parts are shown in brokenlines, including the usual sprocket 126, chain 128, and crank 129 onwhich the pedals are mounted.

Mirror image ornamental bands 130 are provided at opposite ends of thecrank hanger, fitting closely thereon, and having a planar outer end 132and an ornamental inner edge which may be scalloped or otherwiseconfigured as indicated at 134. in addition, each band on the edgeopposite the planar end 132 is provided with an arcuate notch 136engageable with the fillet 138 at the juncture between the rearwardlyextending frame members 124 and the crank hanger 118. The surface of theband may also be slightly tapered in this area to accommodate to thefillet. As will be apparent, engagement of the notch 136 with the fillet138 limits the inward movement of each band as it is installed, andfurther precludes rotation of the bands on the crank hanger. (There aresimilar fillets at the bases of the frame members 120 and 122, but theseare not important to the present invention.)

in the case of the tubular head frame, the bearing cup is of sufficientexternal diameter so as diametrically to overlie the ornamental band.However, it is common practice in a crank hanger to use bearing cups 140received in the ends of the crank hanger and having maximum diameters at142 which are no greater than, and may be slightly less than theexterior diameter of the cylindrical crank hanger itself. Thus, thecircumferential flange 144 at the outer end of each crank hanger cannotbe relied on to hold the ornamental bands in position. Accordingly,rather than provide special bearing cups at increased cost, I provide awasher 146 of relatively large diameter and of narrow radial extentwhich fits over each bearing cup and is trapped against the respectiveend of the crank hanger 118 by the outwardly directed flange 144 of thebearing cup. The external diameter of the washer is sufficient topreclude unauthorized endwise withdrawal of each ornamental band, andthe external diameter is shown as being slightly greater than theoutside diameter of the adjacent band in each instance. As will beunderstood, the bearing cups form a rather tight fit in the crankhanger, and are not likely to come out accidentally. Furthermore, acrank assembly inserted therein positively holds the bearing cups inplace.

Although the ornamental bands have separate utility for use on the crankhanger, it will be apparent that, insofar as the bands are used on thehead frame, they are inextricable from the lock mechanism. Thus, thepins 40 secure both the ornamental band and the bearing cup to the topof the tubular head frame. Part of the latch strike is in the bearingcup, and part in the tubular head frame, and both parts are covered bythe ornamental band to prevent tampering. Furthermore, the inwardlydirected flanges or ears on the ornamental band interfit with thenotches at the top of the tubular head frame, and the ears on thebearing cup also interfit with these notches, whereby proper orientationof the bearing cup relative to the head frame is insured, and yet thenotches are thoroughly protected.

It is to be emphasized that the bands in the present invention areornamental in nature, and are functional in cooperation with the lockmechanism, but are distinguished from the lugs common on Europeanbicycles which are used for brazing the various frame parts together.The bands in the present invention are removable, and are not a part ofthe frame construction.

The specific example of the invention as herein shown and described isfor illustrative purposes only. Various changes in structure will nodoubt occur to those skilled in the art, and will be understood asforming a part of the present invention insofar as they fall within thespirit and scope of the appended claims.

The invention is claimed as follows:

1. In a tubular frame vehicle comprising a substantially upright tubularhead having upper and lower ends and having rearwardly extending tubularframe means joined thereto adjacent said ends, a readily removableornamental band substantially free of lateral extensions encircling onlysaid tubular head adjacent one of said ends and free of adherencethereto, and a bearing cup received in said tubular head and having aradially projecting portion projecting ourwardly past and therebyholding said band thereon adjacent said rearwardly extending framemeans, said bearing cup comprising the sole restraining force holdingsaid band on said head.

2. The combination set forth in claim 1 wherein said frame means isjoined to said head frame at a fillet, and wherein said band is shapedcomplementary to said filet to position said band circumferentiallyrotationally of said head frame.

3. The combination set forth in claim 2 wherein the complementary shapeincludes a flare.

4. A tubular frame vehicle comprising an openended cylindrical memberadapted to have a part rotatably journaled therein and having tubularframe means extending transversely therefrom adjacent one end, a readilyremovable ornamental band substantially free of lateral extensionsencircling only said cylindrical member adjacent said end and free ofadherence thereto, and a bearing cup received in said cylindrical memberincluding a tubular portion received within the open end of saidcylindrical member, and means forming a part of said bearing extendingradially outwardly of said tubular portion beyond said cylindricalmember and at least radially overlapping said ornamental band comprisingthe sole means to retain said band on said cylindrical member adjacentsaid transversely extending frame means.

5. A tubular frame vehicle comprising a cylindrical member which isopen-ended for journaling of a rotating part therein, tubular framemeans joined to said cylindrical member and adjacent one end and forminga fillet therewith and extending transversely of said cylindricalmember, and a removable ornamental band encircling only said cylindricalmember and adjacent said end, said band being shaped complementary tosaid fillet to position said band circumferentially of said cylindricalmember and further including a washer between said bearing cup and saidband, said washer having an inside diameter held by said bearing cup andan outside diameter holding said band.

Patent No. 3,785,676 Dated JANUARY 15, 1974 Inventor(s) FRANK F. KLEIN,JR.

It is certified that error appears in the above-identified patent andthat said Letters Patent are hereby corrected as shown below:

Column 1, line 35, change "can ot" to --cannot-- Column 1, line 42,change "a vantages" to "advantages-- Column 3, lines 3-4, change"roller" to --rolled-- Column 4, line 35, change "form" to --fork--Column 5, line 31, change "155" to --ll5- Column 8, line 28, delete"rotationally" Column 8, line 55., after "member" delete "and" Signedand sealed this 7th day of May 19m;

(SEAL) At'test:

EDWARD- I I.FLETCI-LER,JR. C. MARSHALL DANN Atte sting OfficerCommissioner of Patents R o-1o50 (10-69) uscoMM-oc 60376-P69 U.S.GOVERNMENT PRINT NG OFFICE: I969 036S-34

1. In a tubular frame vehicle comprising a substantially upright tubularhead having upper and lower ends and having rearwardly extending tubularframe means joined thereto adjacent said ends, a readily removableornamental band substantially free of lateral extensions encircling onlysaid tubular head adjacent one of said ends and free of adherencethereto, and a bearing cup received in said tubular head and having aradially projecting portion projecting ourwardly past and therebyholding said band thereon adjacent said rearwardly extending framemeans, said bearing cup comprising the sole restraining force holdingsaid band on said head.
 2. The combination set forth in claim 1 whereinsaid frame means is joined to said head frame at a fillet, and whereinsaid band is shaped complementary to said fillet to position said bandcircumferentially of said head frame.
 3. The combination set forth inclaim 2 wherein the complementary shape includes a flare.
 4. A tubularframe vehicle comprising an open-ended cylindrical member adapted tohave a part rotatably journaled therein and having tubular frame meansextending transversely therefrom adjacent one end, a readily removableornamental band substantially free of lateral extensions encircling onlysaid cylindrical member adjacent said end and free of adherence thereto,and a bearing cup received in said cylindrical member including atubular portion received within the open end of said cylindrical member,and means forming a part of said bearing extending radially outwardly ofsaid tubular portion beyond said cylindrical member and at leastradially overlapping said ornamental band comprising the sole means toretain said band on said cylindrical member adjacent said transverselyextending frame means.
 5. A tubular frame vehicle comprising acylindrical member which is open-ended for journaling of a rotating parttherein, tubular frame means joined to said cylindrical member andadjacent one end and forming a fillet therewith and extendingtransversely of said cylindrical member, and a removable ornamental bandencircling only said cylindrical member adjacent said end, said bandbeing shaped complementary to said fillet to position said bandcircumferentially of said cylindrical member and further including awasher between said bearing cup and said band, said washer having aninside diameter held by said bearing cup and an outside diameter holdingsaid band.